The Shadow's true identity takes center stage in two classic pulp novels that inspired the classic 1940 Shadow movie serial. First, explorer Kent Allard is invited to join The Green Hoods, a hooded secret society whose true purpose is an enigma. Then, airplanes carrying wealthy passengers disappear over the Rockies, setting The Shadow on the trail of the criminal mastermind called Silver Skull. PLUS: "Prelude to Terror," a 1939 radio classic. This volume showcases both classic pulp covers by George Rozen, original interior illustrations by Edd Cartier and commentary by Ed Hulse and Will Murray.